60.2.6 Presentation: "CPICH Data" Status Windows

The CPICH Data and CPICH Best UARFCN Data status windows both contain a large number of columns with scan data. They differ only with respect to sorting: CPICH Data is sorted first by UARFCN, whereas CPICH Best UARFCN Data is sorted by Aggr Ec/I0 regardless of UARFCN. The columns have the following meanings:

SC

Scrambling code number.

Peak Ec/Io

The peak code power of the scrambling code (Ec) relative to the total signal power in the channel (I0), i.e. the difference between them in dB.

Peak Ec

The peak code power of the scrambling code in dBm.

Ag Ec/Io

The aggregate code power of the scrambling code relative to the total signal power in the channel (I0), i.e. the difference between them in dB.

Ag Ec

The aggregate code power of the scrambling code in dBm. The aggregate code power is a measure of the total signal power (distributed around the main peak due to multipath propagation) that is above the PN threshold (settable in the PCTel scanner: see section "Setup of CPICH Scan: PCTel").

Aggr–Peak Ec

Difference in dB between the aggregate code power (Ag Ec) and peak code power (Peak Ec), i.e. Rake receiver gain.

Delay Spread

Time in chips from the first to the last Ec/I0 peak that is above the PN threshold. This is a measure of the signal spreading due to multipath propagation.

RFC

Rake finger count, i.e. the number of Ec/I0 peaks (multipath components) that are above the PN threshold.

Time Offset

The time offset of the radio frame on the CPICH, given in chips from a 1/100th second time mark aligned with GPS time. Ranges from 0 to 38399.

SIR

Signal-to-interference ratio of the scrambling code in dB. Measured on DPCCH.

All of these are identical with information elements having similar names but beginning with "Sc". See Information Elements and Events, section "Information Element Table".